Cylinder construction



H. H. DULEY. SPRINKLER SYSTEM. APPLICATION. FILED MAR. 22. me.

Patented Jan. 3,1922.

UNITED STATES PATENT OFFICE.

HARLEY H. DULEY, OF NEW YORK, N. Y., ASSIGNOR TO GENERAL FIRE EXTINGUISHER COMPANY, OF NEW YORK, N. Y.,

A CORPORATION OF NEW YORK.

SPRINKLER SYSTEM.

Specification of Letters Patent.

Patented Jan. 3, 1922.

To all whom it may concern:

Be it known that I, HARLEY H. DULEY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented new and useful Improvements in Sprinkler Systems, of which the following is a specification.

This invention relates to automatic fire sprinklers and it consists in the novel features hereinafter described and claimed.

An object of the invention is to provide a sprinkler of the character indicated which is of simple and durable structure and which when once used is ruptured or rendered unfit for use a second time.

The purpose of this is to prevent the reassembling of the parts by those who are inexperienced or unfamiliar with the operative principles of the device. The objection to reassemblage by such persons is that they may use non-fusible parts where fusible parts should be used and vice versa. These parts to all appearances may have proper characteristics when as a matter of fact they do not. Consequently in case of fire the device fails to operate and therefore it does not perform its function as a sprinkler. In the interest of safety the parts when once separated by the action of heat cannot be reassembled until the broken or ruptured part is replaced. The last mentioned parts are maintained in the custody of one who knows how all of the parts should be reassembled and consequently before a used device can again be placed in active condition the custodian must be called on and he is thereby afforded an opportunity to inspect and supervise the reassemblage to see that it is properly done.

ith this object in view the sprinkler includes a frame adapted to be applied to a water pipe and having a spreader mounted thereon which is adapted to be encountered by the water as it escapes from the pipe whereby the water is divided into comparatively fine streams and sprinkled in the vicinity of the attachment. A disk is mounted upon the frame and normally closes the outlet of the water pipe and arms are interposed in the frame and one of the said arms bears against the said disk and holds the same in a closed position. A non-fusible element is mounted upon one of the said arms and secured thereto by a fusible pin and a link is provided with openings, one

of which receives the said element and the other receives one of the arms whereby the said arms are normally made to retain the disk in position over the water outlet of the Water pipe.

In the event of a fire or excessive heat in the vicinity of the sprinkler, the said fusible pin is melted whereby the arms are caused to fall out of the frame and the disk is moved from over the outlet of the water pipe by the pressure of the water and thus the automatic action of the sprinkler is attained.

In the accompanying drawings kl Figure 1, is a side elevation of the sprin- Figure 2, is a transverse sectional view of the same.

Figures 3, 4, and 5 are detail views of the features of the invention.

The sprinkler comprises a frame 1, having a threaded nipple 2, adapted to be engaged with an outlet of a water pipe in the usual manner. A spreader 3, is mounted upon the frame 1, at the side thereof opposite that side at which the nipple 2, is located and the spreader 3, is provided at its periphery with a series of recesses 4, through which the water may pass in comparatively fine streams as it leaves the nipple 2.

A disk 5, is positioned upon the upper end of the nipple 2, and arms 6 and 7, are interposed between the said disk and the upper intermediate portion of the frame 1. The arms 6 and 7 are provided at their inner ends with heads which engage with each other and one of the said heads bears against the upper surface of the disk 5, while the other head engages the frame 1, as best shown in Figure 2, of the drawing. A link 8, is provided with openings 9, one of which receives the free end of the arm 6, while the other opening 9, receives a hook 10, which is provided upon a non-fusible supporting element 11, mounted upon the arm 7. The element 11, is provided at one end with ears 12 which lie at the opposite sides of the arm 7, and a fusible pin 13, passes through the arm 7 and the ears 12. If desired, the intermediate portion of the element 11, may be secured to the edge of the arm 7, by means of a suitable fusible alloy 12.

It is apparent that when the temperature in the vicinity of the attachment becomes excessive or beyond the normal, the fusible pin 13, is melted while the alloy 12, is also melted, thus the supporting element 11, is released and the link 8, becomes detached from the arm 7, and the arms 6 and 7 fall from between the intermediate portion of the frame 1, and the top surface of the disk 5. The pressure of the water through the nipple 2, removes the disk 5, from the upper end of the nipple and the water comes in contact with the spreader 3, and is sprinkled in every direction about the attachment. After the device has once operated as above described, it will be practically impossible to use the arm 11, a second time.

The hook 10, of the non-fusible element 11, is extended substantially at an obtuse angle to the body of said element, whereby to cause free separation of the parts when the fusible pin 13 and the alloy 12 are melted. This arrangement is preferred also for the purpose of causing the various elements to remain in the operative position shown in Figure 2, under normal conditions.

As will be seen, by the construction shown and described the fusible means in the form of a fusible solder pin will, when the parts are assembled and when the valve is subjected to the action of the water pressure thereon, be subjected to a compressive or shearing action, while any fusible solder which may be placed between the arm 7 and the member 11 will be subjected to a rupturing strain, and so that in neither case will there be any sliding action of the fusibly jointed parts when the solder shall have become partially fused. The subjection of the fusible means to a compressive or shearing strain is especially advantageous and desirable.

Having described the invention what is claimed is An automatic sprinkler, comprising a frame, a nipple carried thereby, a disk freely seated against the nipple and sealing the same, relatively separable arms asso ciated with the disk and with the frame, a support having spaced ears straddling one of the arms, the said support and arm adapted to have interposed therebetween a fusible alloy, a fusible pin extending through the ears and through the arm and an apertured link freely receiving one end of the support and the outer terminal of the other arm.

In testimony whereof I aflix my signature in presence of two witnesses.

HARLEY H. DULEY.

Witnesses:

ANNA V. DOYLE, CHRIS FEINLE, Jr. 

